Here's a few! While I mostly use the RSS feeds from these sites, I often read the web versions too:
Hack a Day, wonderful place to get clued into ground-up explorations of technical topics from the outside
BBC News, good for a world perspective that's not fully US-centric but still in English
OSNews, Operating System news for nerds like me who get legitimately excited for things like installing plan9 on bare metal
Ken Shirrif's Blog, the paragon of long-form teardown & explanation of vintage electronics, deeply insightful, terrifyingly technical but still approachable. Okay, not a daily update, but worth the wait
Create Digital Music, solid and considered electronic music instrument news and articles, for us unreformed synthesizer geeks